In 10.10 in the task bar there was a button that minimized all windows. Now that there is no task bar (bummer) the button is gone (double bummer) anyone know how to get it back? The button or the taskbar. Thanks.
You can add a "Show Desktop" button to the launcher by following this guide.
Use the Super+ D combination. Ik acts as the 'Show Desktop' in 10.10. To restore your desktop hit the Super+ D again